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# Federated Learning of Cohorts (FLoC) **(FREE SELF)**
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/60933) in GitLab Free 13.12.
Federated Learning of Conhorts (FLoC) is a feature that the Chrome browser has
rolled out, where users are categorized into different cohorts, so that
advertisers can use this data to uniquely target and track users. For more
information, visit the [FLoC repository](https://github.com/WICG/floc).
To avoid users being tracked and categorized in any GitLab instance, FLoC is
disabled by default by sending the following header:
```plaintext
Permissions-Policy: interest-cohort=()
```
To enable it:
1. Go to the Admin Area (**{admin}**) and select **Settings > General**.
1. Expand **Federated Learning of Cohorts**.
1. Check the box.
1. Click **Save changes**.
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